Vehicle antiskid mechanism and wheel jack



Jan. 11,1949. ALCOHEN 2,459,016

VEHICLE ANTISKID MECHANISM AND WHEEL JACK Filed Jan. 4, 1946 .INVENTCJR ABE COHEN ATTORNEY Patented Jan. 11, 1949 VEHICLEYANTISKID f 1' 1 WHEEL JACK v Abe Cohen, Omaha, Nebr'. Application January 4, 1946,-Serial No. 639,093 3 The present invention relates to the transportation art and more particularly to automobiles and has, for an object'to provide an improved mechanism and mode ofoperation thereof with respect vto my prior Letters Patent No; 1,972,702.

'Moreparticularly, itis an object of the present invention to utilize the power of an engine of an automobile for jacking up one or more of the wlieel's'thereof; whereby the tires of said wheels maybe exchanged for other similar tires at desired times; f

Another object of the invention is to provide a device for the above "stated purposes which may be readily attached to or removed from an automobile, trucker thelike and which may be employed'as an anti-skid device at desired times such'as during a travel of the vehicle uponwet and slippery'pavements, roads'covered with ice and the like, and 7 also while descending hilly roads, said device to be so constructed that it may be readily employed, if desired, for anchoring a vehicle on a roadway, including a comparatively steeproadway at times when the braking system of thevehicle is not suihcient for said purpose or at times whenthere is a failure of said braking 1 system.

Other and further objects and advantages of the invention will be understood from the following detailed description thereof. In thedrawing: 4 v Figure 1' is a side elevation of the new device as applied, in. a position of use, to the chassis of an automobile, said chassis being represented primarily by means of dotted lines, the view being taken substantially on line I-'| of Figure 2. Figure 2*is a top plan view of the embodiment of the invention shown in Figure 1.

Referring now to the drawing for a more particular' description, it] indicates generally a selfpropelled vehicle such as an automobile, truck or the like, and H generally indicates the engine thereof. The engine is mounted between the oppositely disposed side frame rails of the chassis and one of said frame rails is indicated at 12.

The floor of the body of the vehicle is indicated at 3 and the inclined foot board thereof at H. The'rear endof the frame rail I2 is provided 'l'Claims; (01. 1885-5) having a rear wheel at each end thereof. Only the rear wheel 2i is shown in the drawing, by means of dotted lines. The spring i9, is secured to the axle .housi'ng 2ll in a well-known manner and ,the foregoing minutely described land numbered parts are of conventional construction.

Several parts ofthe new device are attached to the rear axle housing 20 and adjacent the wheel 2| and it will lbe understood that similar, parts are s-ecured to the other end ofthe axle housing and adjacent the other rear wheel of the vehicle and sincethose portions of the deviceadjacenttherear wheel which is not shown are a duplication .of the parts which are adjacent the wheel 2|, but one set of said parts is minutely described herein. c

It is well known that the axle housings 20 are circularintcross sectionand with respect to many" automobiles and for' rear axle housings which are not circular adjacent the attachment of the new 7 device thereto, the; same maybe readily made circularby attaching shims to said housings.

In the practice of the present invention, a support issecured to the rear axle 20. Preferably the support is a'shackle disposed around or about the rear axle housing- 20. The shackle is of twopiece construction and consisting ofthe parts I indicated at 22 and 23,'each of which is provided withoppositely disposed cars at itsend. Bolts 24 and 25 are disposed through said ears for clampingthe shackle-about the axle housing 20. a As thus described,-it will be seen that at times when the nuts of the bolts 24 and 25 are turned sufiil shackle and oppositely disposed arms 21 and 28 are provided integral with the ear 26, whereby r the latter is provided with a bifurcated end.

with a shackle-hangerlfi anda support I6 is v disposediorwardly thereof, the upper end of the" support it being secured to the frame rail l2;

Shackle-bolts H and i8 are'provided for secur The shackle portion 23 is also provided with a boss 29 formed integral therewith and said boss legs 30.

is also bifurcated; having oppositely disposed v 3| also extends through one end of a crow 32 in a manner whereby the latter is swingably at- I tached to the boss 29. Means are provided for limiting swinging movements of the crow32.

ing"the ends of a spring"lilfrespectivelyto the I shackles l5'and I6 in awe llgknown mannerxj The'vehicle includes a rear axle housinglfl;

As best shown in Figure 1, one end of the crow'32 is'provided' with a fiat surface 33 which, as best shown in vFigure 1, is disposed at at angle 7 orae srt iw ie re pe s-a tir mgitudmal portion 23 has an ear 26 which is 3 length of the crow, said surface 33 being adapted to bear against the flat surface 34 of the boss 23 for preventing too great an upward movement of thecrow. As shown in Figure 1, the flat surface 34 of the boss 29 of the shackle 23 is disposed downwardly and rearwardly of the vehicle during use and at an angle of approximately 45 with respect to the ground H. Thesurface 33 of the crow has an arcuate end portion, 35 for permitting the crow to swing on its pivot pin 3| against and away from the surfaces 34 and said arcuate surface 35 of thecrow is in communication with the inclined "surface-'55 thereof. The surface 36 is also disposed at an angle of degrees with respect to thelongim gz tudinal length of the crow 32. N n V v It will be seen that at times'when the crew 32" is moved in the direction of the arrow 31, said 5 movement is stopped by; the surface 36 of the crow abutting the surface 314 of the boss 23 for limiting a swinging movement of the crow with respect to the boss to an arc of approximately 90 degrees for purposes later described.

A stub axle 38 is disposed through the free end of the arm 28. A similar stub axle39'is similarly disposed through the other arm 21,1as" best shown in Figure 2. The axles 38 and 39are integral with the wall of a later described part 40. 1

The stub axles 38 and 39 are disposed in axial alignment and project outwardly and QDPOSi tely with respect to a cylinder 40. A piston rod 4i projects out of the lower end of the swingable cylinder 40, said projecting end of, the piston rod being bifurcated, said bifurcations being pivotally attached, as at 42, to the crow 32. That end of the slidable piston rod 4! which is within the cylinder is provided with a piston head the latter being disposed below the cap'43 of the said cyllnder,'the said piston head not'be'ing 'showii'in the drawings.

l It will be understood that, at times when 'fl'uid under pressure is applied to the upper side of the said piston head and between the arter es; the said cap 43, the piston rod 4! is'thereby "rce dj downwardly for swinging thecrow 32in tlied r ction of the arrow 3Tand at "times when'='said-f pressure is released, a spring 44 returns the crow; in-a direction oppositeto the arrow 31, to "a" normal position, as shown by the full lines'of said crow in Figure 1, since the opposite'ends of the spring 44 are respectively attached tothe crow'and to a detent-pin 45, the latter being; disposed through the free endportions ofthe arms 21 and 28. The upper end of the cylinder is in communica tion with a flexible hose 4B for receivingfluid' under pressure from the latter and, as best shown in Figure 2, the hose 46 is similarly in communication with a T-fitting4'l at one end of the' latter. v '60 The other end of the T 47 is in communication with asimilar length of hose 48 whichjextends to a mechanism which is exactly the same asthe' j above described mechanism identified by the I parts indicated at 22 through 45, said mechanism being disposed at and secured to the rean axle housing 20 at that end of the latter Whichis not shown and which is adjacentto, the reariwheel' f of the vehicle which is opposite the" wheelfZl thereofp, The T 41 is also in communication with a,fur-' ther flexible hose line 49 for receiving fluid under pressure therefrom, L Theend 50 of.,thefcondu it"01"hps }l8 is con-.1 pled'to a pipe '5 I for receiving fluid,"liquidbroifn under pressure from said pipe and the latter similarly receives liquid under pressure from the interior of a second cylinder or drum 52.

The wall of the drum 52 is provided with a stub axle 53 outstanding therefrom and said stub axle 53 is pivotally mounted through a sleevebearing 54, the latter being indicated by means of dotted-dines; The sleeve-bearing 54 is formed integral with,aihanger-bracket 55,.the latter being provided with a flanged portion 56.

{Ihe flange 55 is secured by any suitable means,

suchas ,thes bolts 5 to the frame rail l2 of the t',-a 1 1ton 1obile and, as thus described, it will be understood that the drum 52 is permitted to rotate ton route which" extends throughfajn end was of medium.- 'szisua' through spea ing, ass to":

That e'ndIof thepiston rod159 which is oppo;

sltely diSposed with respect .to j the head 533's bifurcated andfan arni -6l of a combination bellcrankgle'ver and, foot pedal is secured between and to said bifurcations by means of a pivot pin ,62, said bell-crank lever and" foot pedal being generally indicated at 63. The other arm 64 of the bell crank lever terminates in a foot pedal 65, being" disposed through "'a slot. provided throughthe foot board M of the vehicle. Adjacent the junction'cf the arms ii and 64' of the member, 63, thelatter is pivotally mounted on a shaft 36'. As best shown in Figure 2, the shaft ,66 extends'f'tln'ough the bushing 61 of the member 631and also through" the embossmen-t B8 of, the

shanger bracket 55,- whereby the member B3-is pivotal gitudinally of the vehicle l0.

Oil, preferably braking fluid such as is conven tionally employedin the conduits-of the braking system of a vehicle, is provided in the above mentioned flexible hose conduits 45 and 49 and between the piston head 58 of the drum 52 and moves the latter in the direction of the arrow 69, oil'or liquid under pressure is so applied that the crow'32 moves downwardly and against the urge of the spring 44 and since the cylinder 43 is pivotally mounted together with the drum 52 for permitting operation of the several parts of the mechanism.

As best shown in Figure 1, the free end of the crow 32 extends beyond the extended outline of the tread of the wheel 2!. As shown in Figure 2, the crow preferably is provided with a portion Ill which is disposed at a right angle with respect to themain body portion of the crow, said portion 10 being disposed across the perimeter of the slightly and in the direction of the arrow 89 for,

causing the main body portion of the crew 32 to become vertically disposed and moved from ly mounted for swinging movements lon the full line position thereof to the dotted line position shown in Figure 1 for raising the wheel 2! above the soil for removing the tire of said wheel or the like, and it will be seen that the rear wheel will remain in an elevated position since the inclined surface 3-6 of the crow engages the surface 34 of the boss 29.

During forward travel of the vehicle and in the event that the surface of the roadway ll is slippery from rain or the like, or in the event that ice has formed on said surface, the operator upon approaching said icy or wet pavement may manipulate the foot pedal 65 for causing the crow to swing downwardly until the edge 12 thereof engages said surface for checking the skidding of the rear wheels of the vehicle. If desired, the extended portion of the crow may be provided with a nodulated outwardly disposed surface for contact with the roadway for augmenting the anti-skid purpose of the device.

From the foregoing description, it is thought to be obvious that a vehicle anti-skid mechanism and wheel jack constructed in accordance with my invention is particularly well adapted for use by reason of the convenience and facility with which it may be assembled and operated, and it will also be obvious that my invention is susceptible of some change and modification without departing from the principles and spirit thereof and for this reason, I do not wish to be understood as limiting myself to the precise arrangement and formation of the several parts hereinshown in carrying out my invention in practice, except as claimed.

I claim:

1. In a motor vehicle, a shackle disposed about the rear axle and adjacent a rear wheel of said vehicle, a crow having an end pivotally attached to said shackleto permit vertical swinging movements thereof, the free end of said crow being disposed beyond the extended outline of the tread of said wheel, a cylinder pivotally attached to said shackle for vertical swinging movements, a piston in said cylinder having a. rod slidably disposed through an end of said cylinder, said end of .said rod being pivotally attached to said crow between the ends of the latter, a spring for causing the free end of said crow to normally be above a roadway during use, a second cylinder attached to the frame of said vehicle and having a second piston therein, a rod for said second piston slidably disposed through an end of said second cylinder, a flexible conduit between said cylinders, a liquid in said conduit between said pistons, and a lever having an articulated connection with said second piston for causing liquid under pressure to swing the free end of said crow into engagement with said roadway against the urge of said spring at times when said lever is actuated.

2. In a motor vehicle as claimed in claim 1 in which the free end of the crow thereof is disposed across said tread of said wheel.

3. In a motor vehicle as claimed in claim 1 in which the shackle and crow thereof are provided with cooperative means for preventing the crew from swinging past an approximately vertical position at times when the free end of said crow is engaged with a roadway.

4. In a motor vehicle, a support secured to the rear axle and adjacent a rear wheel of said vehicle, a crow having. an end pivotally attached to said support for vertical swinging movements at the inner side of said wheel, the free end of said crowd being disposed beyond the tread of 7 said wheel, a cylinder having a piston therein and a rod for said piston slidably disposed through an end of said cylinder, said rod being pivotally connected to said crow between the ends of the latter, the wall of said cylinder being pivotally attached to said support, a spring having its ends respectively attached to said support and crow for urging the free end of crow upwardly, and fluid under pressure actuated means for causing said piston to move the free end of said crow into engagement with a roadway.

5. In a motor vehicle as claimed in claim 4 in which the support thereof includes a two-piece shackle disposed about said rear axle, the ends of said pieces being bolted together for clamping the support to said axle.

6. In a motor vehicle as claimed in claim 4 in which the support and crow thereof are provided with cooperative means for preventing the crow from swinging .past an approximately ver-- tical position at times when the free end of said crow engages with a roadway.

7. In a motor vehicle, a shackle disposed about the rear aXle and adjacent a rear wheel of said vehicle, a crow having an end pivotally attached to said shackle to permit vertical swinging movements thereof, said pivotally attached end of said crow being provided with a surface disposedat approximately degrees with respect to said crow, a surface on said shackle engageable with said inclined surface to prevent, excessive pivotal movements of said crow, said shackle sunface being disposed slanting downwardly toward the rear of saidvehicle at an angle of 45 with respect to the vehicle, means including a spring for causing said crow to be disposed above the surface of a roadway, fluid under pressure means for causing said crow to swing from said normal position into engagement with said surface, and articulated lever means for actuating said fluid under pressure means. I

ABE COHEN.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,946,712 Reed Feb. 13, 1934 2,143,182 Barr Jan. 10, 1939 2,322,358 Hansen June 22, 1943 

